Territory



(No Model.) 7 3 Sheets-Sheet 1. A. A., E. 8v H. BLAOKMA N.

LOGOMOTIVB.

No. 272,633. Patented Feb.'20,1883.-

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LOGOMOTIVE.

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ALANSON A. BLAGKMAN, ELHANAN BLAOKMAN, AND HYROANUS BLACK- MAN, OFSNOHOMISH, WASHINGTON TERRITORY.

LOCOMOTIVE.

SPECIFICATION forming part of Letters Patent No. 272,633, dated February20, 1883.

Application filed August 31, 1882. (No model.)

'[0 all whom it may concern:

Be it known that we, ALANSON A.- BLACK- MAN, ELHANAN BLACKMAN, andHYRGANUS BLAGKMAN, all of Snohomish, in the county of Snohomish andTerritory of Washington, have invented certain new and usefulImprovements in Locomotive-Engines, of which the following is a full,clear, and exact description.

This invention consists of improvements in locomotive-engines, wherebyit is intended to adapt such engines ior better action upon trainwaystoruneven and undulating tracks than as now arranged.

in carrying out our invention we employ a combination of side and endtrucks capable of independent vertical and lateral articulation of theconnections, substantially such as described and represented in thepatent granted to us March 14, 1882,1310. 254,908, and apply independentsteam driving-gear to each of the two side trucks of one end of thecombined truck, as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is partly afrontelevation and partly a transverse section ofour improved locomotive. Fig. 2 is a side elevation of a portion of thesame. Fig. 3 is a side elevation of the 10- comotive and tender, withone of the cylinders sectioned. Fig. 4 is a side elevation of one of thecrank-shafts, and Fig. 5 is a plan view of the combined truck.

For the locomotive-truck we employ four primary trucks, consisting offrames at, each having two wheels, b, suitably mounted in a longitudinalline for running on one rail, said trucks being connected in pairstransversely of the road by a cross-beam, c, or other device, to whichthey are pivoted at d, so as to have horizontal oscillation on saidpivots for going around curves freely, as represented in Fig.5; and forthe locomotive we have pivoted the beam 0 of one pair of the trucks tothe connecting-frame e for the two pairs of trucks, as atf, togetherwith jointed braces g, to allow free vertical oscillation of therespective pairs of trucks without interference with each other. For theapplication of locomotive driving-gear to trucks of this character, wemake the transverse connecting device between the two trucks at b, onwhich the locomotive is to be mounted, to consist of two independenttrunnions, h, each having what we call trunnionframes,consistingof headi, basej, and top it, the trunnions being arranged in bearings l of abed-plate, in, to which frame 0 is attached and on which the boiler n ismounted.

The trunnions and their frames are to serve for the connection of thetrucks a b that the driving-gear is applied to, so that said trucks mayoscillate freely in a vertical plane by the turning of the saidtrunnions in their bearings, and also so that they (said trucks) mayoscillate horizontally by turning on the pivots d in thetrunnion-frames, wherein said truckframes are arranged, by meansofbearing-plates 0 and 12, attached to them between the wheelsb, asshown in Fig. l, for being pivoted to the trunnion-frame; and the plate0 is also forsupporting the bearings q of the crank-shaft r, to whichthe power is applied by the inverted engines 5, placed vertically overthe space between the wheels b on supports '6, mounted on thetruck-framed each side of the top 7c of the trunnion-frame, saidcrank-shaft gearing by a pinion, a, with the wheels I), each of which isprovided with a toothed rim,'0, for the purpose.

A pair of engines, 8, is arranged with each truck a b, so as tooscillate freely with said, truck independently of the other truck andits engines, and flexible steam-pipes w are employed for the supply ofthe steam to allow of such oscillations.

The top and bottom plates, 70 and j, of the housing-frames are connectedoutside of the truck-frames by stay-bolts-w, to support them one by theother, the bolts being frames.

As in the truck of our former patent, we propose to employdouble-flanged wheels for running upon wood or strap railslaid onstringers 5 without ties, the double flanges being essential to theindependent lateral action of the trucks of our system.

The engines, being of ordinary construction, need not be moreparticularly described.

It will be seen that an engine having the jointed connections of therespective trucks,

IOO

put in after the truck-frames a are placed in said trunnionas hereinshown, may run on tracks greatly varying in the level of the rails, andalso having very short curves, without undue strain of any ofthe parts,and also Without binding or cramping in the joints.

The top plate. 70, of the housing-frames is slotted at y for thevalve'rods of the engines, and at z for the connecting-rod of the insideengine. \Vhile a single pair oftrucks, a b, may

serve for the locomotive with good results, we prefer to employ twopairs, as shown, with a connecting-frame, e, which affords greaterstability, and We use the extension for a tender, as in Fig. 3.

Having thus described our invention, What we claim as new, and desire tosecure by Letters Patent, is

1. The combination, with side and end trucks having independent verticaland lateral mo tion, of independent steam driving-gear to each one ofthe side trucks, as and for the purpose described.

2. In a locomotive-engine, the combination of a pair of trucks, a b,each having independent driving-engines, and being connected to thebed-frame or platform by joints, enabling said trucks to oscillate bothvertically and horizontally independently of said frame and of eachother, and the bed-frame or platform connected by a pivot-joint, f, andjointed braces g with the beam 0 of another pair of truckssimilarlyjointed together, substantially as described.

3. The combination, in a locomotive-engine, of a platform or bed-plate,m. a pair of trunnions, h, and trunnion-frames, ij k, and a pair oftrucks, at b, said trucks being pivoted in said trunnion-frames and saidtrunnions being journaled on the bed-frame a, substantially asdescribed.

4. The combination, in a locomotive-engine, of bed-plate m, a pair oftrunnions and trunnion-frames, a pair of trucks at b, and drivingenginesgeared independently with said trucks, respectively, substantially asdescribed.

5. The combination, in alocornotive-engine, of bed-plate m, a pair oftrunnions and trunnion-frames, a pair of trucks, a b, and drivingenginesgeared independently by crank-shafts 1, pinions u, and toothed rims 'v,with said trucks,respectively, substantially as described.

ADANSON A. BLAOKMAN. ELHANAN BLACKMAN. HYROANUS BLAOKMAN.

Witnesses C. A. 'MISSIMER, W. F. EDDY.

